SMBJ170A-M3/5B Equivalent & Substitute Parts

Part Overview

The SMBJ170A-M3/5B is a unidirectional transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the 170V reverse standoff voltage class and provides transient protection for general-purpose applications. The part is Active status and ROHS3 compliant. Substitute parts are identified to address inventory availability, supply chain continuity, and equivalent functional performance across multiple manufacturers.

Substiute Parts

SMBJ170A-M3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 1224SMBJ170A-M3/5B Datasheet

Current PartRFQ

SMBJ170A-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 2763SMBJ170A-E3/52 Datasheet

DirectRFQ

SMBJ170A-E3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 6881SMBJ170A-E3/5B Datasheet

MFR RecommendedRFQ

1SMB170A TR13 PBFREE

Central Semiconductor CorpIn Stock: 15471SMB170A TR13 PBFREE Datasheet

DirectRFQ

SMBJ170A

Fairchild SemiconductorIn Stock: 17321SMBJ170A Datasheet

DirectRFQ

SMBJ170A

Fairchild SemiconductorIn Stock: 17321SMBJ170A Datasheet

DirectRFQ

SMBJ170A-13-F

Diodes IncorporatedIn Stock: 10224SMBJ170A-13-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters:

• Voltage - Reverse Standoff (Typ): 170V
• Voltage - Breakdown (Min): 189V
• Voltage - Clamping (Max) @ Ipp: 275V
• Current - Peak Pulse (10/1000µs): 2.2A
• Power - Peak Pulse: 600W
• Type: Zener
• Unidirectional Channels: 1
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount

All identified substitute parts meet these electrical and mechanical criteria. Variations in manufacturer, packaging designation, and operating temperature range do not affect functional substitutability within the specified parameter set.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain identical electrical performance and package compatibility with the SMBJ170A-M3/5B. Selection among substitutes should be based on:

• Manufacturer availability and supply chain status
• ROHS3 compliance requirement: SMBJ170A-E3/52, SMBJ170A-E3/5B, 1SMB170A TR13 PBFREE, and SMBJ170A-13-F all meet this requirement
• Operating temperature range: The 1SMB170A TR13 PBFREE extends the lower temperature limit to -65°C, providing additional margin for cold environment applications
• Inventory availability and lead time

Frequently Asked Questions (FAQ)

Q: Can SMBJ170A-E3/52 and SMBJ170A-E3/5B be used interchangeably with SMBJ170A-M3/5B?

A: Yes. Both parts are manufactured by Vishay and share identical electrical specifications, voltage ratings, current ratings, and package configuration. The suffix variations (E3/52 vs. E3/5B vs. M3/5B) indicate different tape and reel packaging formats but do not affect component performance.

Q: Is the 1SMB170A TR13 PBFREE from Central Semiconductor a direct substitute?

A: Yes. The part meets all electrical and mechanical requirements. The operating temperature range extends to -65°C, providing enhanced performance in lower temperature environments compared to the -55°C minimum of the original part.

Q: What is the difference between SMBJ170A from Fairchild and SMBJ170A-13-F from Diodes Incorporated?

A: Both parts are electrically equivalent with identical voltage and current ratings. The primary differences are manufacturer and packaging designation. SMBJ170A-13-F includes ROHS3 compliance documentation, while the Fairchild part does not specify this compliance status.

Q: Are all substitute parts in the same DO-214AA SMB package?

A: Yes. All listed substitutes use the DO-214AA (SMB) surface mount package, ensuring mechanical and footprint compatibility with the original SMBJ170A-M3/5B design.

Q: Which substitute part has the widest operating temperature range?

A: The 1SMB170A TR13 PBFREE from Central Semiconductor operates from -65°C to 150°C, providing a 10°C lower temperature limit compared to other substitutes rated at -55°C to 150°C.